| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 03/16/2000 | WO2000013714A1 A method and apparatus for emitting a signal |
| 03/16/2000 | WO2000000141A3 Device for handling body liquids which transports body liquid by siphoning |
| 03/16/2000 | DE19841814A1 Breakthrough control on a gaseous adsorber comprises sensor array of semiconductor probes with sensitivity specific to a controlled species |
| 03/16/2000 | CA2343402A1 Fluid treatment elements, methods for cleaning fluid treatment elements and methods for treating fluids |
| 03/15/2000 | EP0985641A2 Process for treating waste water containing cutting oil |
| 03/15/2000 | EP0985640A2 Process for treating waste water containing a resin |
| 03/15/2000 | EP0985639A1 Electrochemical antifouling device comprising underwater structure and method of producing underwater structure used for the device |
| 03/15/2000 | EP0985637A1 Method and apparatus for desalinating sea water, natural salt and fresh water |
| 03/15/2000 | EP0985003A1 Agents for unsticking paint, and sedimentation agents |
| 03/15/2000 | EP0984990A1 Preparation of water soluble polymer dispersions from vinylamide monomers |
| 03/15/2000 | EP0882815A4 Electrochemical plant |
| 03/15/2000 | EP0846061B1 Treatment of solutions |
| 03/15/2000 | EP0794926B1 Flock separating apparatus |
| 03/15/2000 | EP0686057B1 Filter for liquids |
| 03/15/2000 | CN2368842Y Unitary apparatus for purifying, sterilizing, preseving and storing ice and hot drinking water |
| 03/15/2000 | CN2368841Y Apparatus for purifying, mineralizing, activating and magnetizing health-care water |
| 03/15/2000 | CN2368840Y Multifunctional water purifier |
| 03/15/2000 | CN2368837Y Water mangetizing apparatus with strong magnetic field and large gradient |
| 03/15/2000 | CN2368836Y High performance electrostatic water treating apparatus |
| 03/15/2000 | CN2368835Y Water magnetizing purifier |
| 03/15/2000 | CN2368834Y High performance energy saving HF electronic water treating apparatus |
| 03/15/2000 | CN2368833Y Apparatus for desalinating seawater at deep sea and pumping |
| 03/15/2000 | CN2368832Y Electroosmotic apparatus for treating waste electrolyte of alkali secondary battery |
| 03/15/2000 | CN2368831Y Apparatus for treating wastewater with emulsified oil |
| 03/15/2000 | CN2368830Y Ultrasonic water processor |
| 03/15/2000 | CN2368829Y Portable ultrafiltering water purifier with hollow externally pressed membrane |
| 03/15/2000 | CN2368828Y Pressure controlling valve for water pressure washing cleaner |
| 03/15/2000 | CN1247481A Process for recovering organic hydroxides from waste solutions |
| 03/15/2000 | CN1247167A Biological chain method for treating ultrophication of water in lake |
| 03/15/2000 | CN1247165A Method for making water-mineralizing medical stone balls |
| 03/15/2000 | CN1247164A Photochemical disinfector for drinking water and its making technology |
| 03/15/2000 | CN1247163A Method and appts. for decomposing bromic acid by using photocatalyst |
| 03/15/2000 | CN1247162A Extraction and displacement process for treating waste liquid of acetochlor |
| 03/15/2000 | CN1247092A Activated medical water and its preparing process and usage |
| 03/15/2000 | CN1050345C Method for treatment of coal slurry |
| 03/14/2000 | US6037715 Spark switch having coaxial electrodes with increased electrode surface area exposure |
| 03/14/2000 | US6037406 High standard viscosity quaternary Mannich microemulsions |
| 03/14/2000 | US6036935 Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions |
| 03/14/2000 | US6036881 Stabilized liquid lime dispersion for sewage treatment |
| 03/14/2000 | US6036869 Novel process of manufacturing high molecular weight emulsion copolymers by free radical polymerization of monomers in a semi-batch process; polymer is hydrolyzable in bayer process liquor to an acid form being an active red mud flocculent |
| 03/14/2000 | US6036867 Chemical agents precipitate predetermined salts; adding a precipitation inhibitor to form a supersaturated concentrate, remaining fraction is demineralized permeate, removing the effect of precipitation inhibitor to precipitate salts |
| 03/14/2000 | US6036866 Automatic regeneration of individual fluid treatment units without interruption of the production of treated water; decision of when to regenerate based on the number of units in service and the fractional capacity of each unit |
| 03/14/2000 | US6036864 Separating baths discharged into those highly polluted and those with low pollutants; discharging less polluted baths to flow channel and into a storage receptacle for reuse and conducting the polluted water to wastewater discharge system |
| 03/14/2000 | US6036851 Peat bale filtration element |
| 03/14/2000 | US6036840 Method and a reactor for electrochemical conversion of a material e.g. soot particles being insoluble in a fluid |
| 03/14/2000 | US6036830 Desalination of aqueous sulphonamide solutions |
| 03/14/2000 | US6036434 Aeration system |
| 03/14/2000 | US6035871 Apparatus for producing semiconductors and other devices and cleaning apparatus |
| 03/14/2000 | CA2111473C Scum removal apparatus |
| 03/14/2000 | CA2102433C Divalent silver alkaline bactericide compositions |
| 03/14/2000 | CA2012472C Procedure and apparatus for separating arsenic from waste material |
| 03/09/2000 | WO2000013193A1 Medical devices incorporating at least one element made from a plurality of twisted and drawn wires |
| 03/09/2000 | WO2000013192A1 Medical devices incorporating at least one element made from a plurality of twisted and drawn wires at least one of the wires being a nickel-titanium alloy wire |
| 03/09/2000 | WO2000012828A1 Slime remover and slime preventing/removing agent |
| 03/09/2000 | WO2000012435A1 Water purification system |
| 03/09/2000 | WO2000012220A1 Particle separating apparatus |
| 03/09/2000 | WO2000012194A1 Composite filter medium and fluid filters containing same |
| 03/09/2000 | WO1999043791A3 Diisopropyl fluorophosphatase and the utilization and production thereof |
| 03/09/2000 | DE19912013C2 Vorrichtung zum Reinigen von Wasser An apparatus for purifying water |
| 03/09/2000 | DE19842005A1 Verfahren und Vorrichtung zur Behandlung von biologischen Abfällen Method and apparatus for treatment of biological waste |
| 03/09/2000 | DE19838778A1 Multi-stage ozone water supply treatment unit linked in series requiring no pumps or height difference to move water under pressure through the system |
| 03/09/2000 | DE19837280A1 Distillation unit for a drinking water treatment plant, comprises a cover which acts as a condenser, and condensate guide and catchment grills. |
| 03/09/2000 | DE19832822A1 Verfahren und Vorrichtung zur kapazitiven Demineralisierung von Ionen enthaltenden Flüssigkeiten Method and apparatus for capacitive demineralisation of liquids containing ions |
| 03/09/2000 | DE19828054C1 Process for the removal of organic contamination in wastewater and ground water comprises the adsorption of the contaminants to polymers on a solid support and microbial regeneration of the polymers |
| 03/08/2000 | EP0983969A2 Method for removing metal contaminants from solution using mercapto-functional silica xerogels |
| 03/08/2000 | EP0983968A2 Process and apparatus for treating wastes of biological origin |
| 03/08/2000 | EP0983210A1 Method of water treatment using zeolite crystalloid coagulants |
| 03/08/2000 | EP0983115A1 Modular filtration systems and methods |
| 03/08/2000 | EP0983110A1 Separation of a two phase mixture by freezing |
| 03/08/2000 | EP0790851B1 Activated sludge degassing process and device |
| 03/08/2000 | CN2367607Y Sea-water bitter-salt-water desalination machine |
| 03/08/2000 | CN2367605Y Multifunction oxygen-rich water-purifying machine |
| 03/08/2000 | CN2367604Y Waste water treatment apparatus |
| 03/08/2000 | CN2367603Y Ion exchanging apparatus |
| 03/08/2000 | CN2367602Y Portable water-purifying apparatus |
| 03/08/2000 | CN2367601Y Solar sea-water desalination apparatus |
| 03/08/2000 | CN2367368Y Hydraulic self-controlled integrated water-purifier |
| 03/08/2000 | CN1246986A Control circuit and method for piezoelectric transformer |
| 03/08/2000 | CN1246837A Ozone deodorizer |
| 03/08/2000 | CN1246805A Method of processing desulfurization absorption liquid and apparatus |
| 03/08/2000 | CN1246449A Intermittent treating equipment of floater and oily sludge |
| 03/08/2000 | CN1246446A Water purification agent |
| 03/08/2000 | CN1246445A Liquid-state water purifier extracted from clay and ore by inorganic acid and its preparing process |
| 03/08/2000 | CN1246444A Automatic flow regulation method for water treating system |
| 03/08/2000 | CN1246442A Process for recovering ammonia from waste chemical water by digestion method |
| 03/08/2000 | CN1050110C Oxygen-gathering activated aerator |
| 03/07/2000 | US6034485 Low-voltage non-thermionic ballast-free energy-efficient light-producing gas discharge system and method |
| 03/07/2000 | US6034081 Synergistic mixtures |
| 03/07/2000 | US6034013 In glass matirx |
| 03/07/2000 | US6033730 Suitable for food materials, filter mediums for water purifiers and so forth. |
| 03/07/2000 | US6033678 Microclustered Water |
| 03/07/2000 | US6033572 Sequentially treated through use of biological treatment means, chemical treatment means, and filtration means |
| 03/07/2000 | US6033562 Apparatus for aerating wastewater from pressurized or gravity flow sources |
| 03/07/2000 | US6033560 Apparatus and method for in-situ application of chemical in a swimming pool or spa |
| 03/07/2000 | US6033557 Filter use limitation device for liquid containers |
| 03/07/2000 | US6033552 Method for purification of natrium sulphate |
| 03/07/2000 | US6033539 Units for electro-chemical synthesis of water solution |
| 03/07/2000 | US6033029 Airplane passenger and lap child restraint system with floatation pad |
| 03/07/2000 | US6032821 Center opening treatment tank |
| 03/02/2000 | WO2000011464A1 APPARATUS AND METHOD FOR MEASURING NOx AND NITRIFICATION/DENITRIFICATION RATES IN BIOCHEMICAL PROCESSES |